Distributor, battery pack and electric device

Abstract

The utility model provides a distributor, a battery pack and an electric device. The distributor comprises a battery management unit and a relay. The battery management unit and the relay are stacked in the Z direction, one of the battery management unit and the relay is connected with the conductive terminal, the other one is connected with the plug-in, and the conductive terminal is connected with the plug-in in an inserted mode. The relay and the battery management unit are stacked in the Z direction, on one hand, the overall structure of the distributor can be more compact, on the other hand, the distance between the relay and the battery management unit can be shortened, electric connection can be achieved through plugging of the conductive terminal and the plug-in, wire harness electric connection is replaced, and electric connection of the relay and the battery management unit is simpler and more space-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of energy distribution, in particular to a distributor, a battery pack and an electrical device Background Art

[0002] The distributor mainly consists of components such as relays, fuses and BMU. The BMU mainly consists of a circuit board with control functions and serves as the core component of the battery control system. The distributor plays a very important safety role in the battery system, and there are increasing requirements for the compact, simple and lightweight design of the distributor. At present, each unit of the distributor in most battery systems is designed in a separated structure, provided by two different manufacturers or departments, assembled, and then connected by wire harnesses. Therefore, there are the following problems: firstly, a certain assembly gap needs to be reserved in the length and width spaces of each component, resulting in waste of space; secondly, the layout of the connecting wire harnesses is cumbersome and prone to safety accidents Summary of the Utility Model

[0003] In order to solve the problems of space waste and complex wire harness connection of the distributor, the utility model provides a distributor, which includes a battery management unit and a relay; the battery management unit and the relay are stacked along the Z direction, one of the battery management unit and the relay is connected to a conductive terminal, and the other is connected to a plug, and the conductive terminal and the plug are inserted into each other

[0004] Stacking the relay and the battery management unit along the Z direction can, on the one hand, make the overall structure of the distributor more compact, and on the other hand, can shorten the distance between the relay and the battery management unit. The electrical connection can be realized by inserting and connecting the conductive terminal and the plug, thus replacing the wire harness electrical connection and making the electrical connection between the two simpler and more space-saving

[0005] In an alternative technical solution of the utility model, the conductive terminal and the plug are welded

[0006] In an alternative technical solution of the utility model, the distributor further includes a housing, and the housing includes an upper housing and a partition; the partition is arranged between the battery management unit and the relay; the battery management unit is arranged in the space surrounded by the upper housing and the partition; the distributor further includes a fuse and a copper bar, and a cover body is arranged outside the fuse and the copper bar, which can play a role in preventing finger contact. If the relay and the battery management unit are simply placed in the housing of the distributor, the battery management unit needs to be disassembled first to take out the relay, and the process is very troublesome and easy to damage related components. The relay and the battery management unit are arranged on the upper and lower sides of the partition, so that the upper housing can be disassembled separately to repair the battery management unit or the relay can be disassembled and repaired separately

[0007] In an alternative technical solution of the present utility model, the above-mentioned relay is fixed on the above-mentioned partition board, and the above-mentioned relay is arranged in the space enclosed by the above-mentioned lower housing and the above-mentioned partition board.

[0008] In an alternative technical solution of the present utility model, an installation part is arranged at the middle position of the housing of the above-mentioned relay along the Z-axis. The installation part includes a through hole, so as to ensure that the relay can be installed on the partition board face-up or face-down.

[0009] In an alternative technical solution of the present utility model, the above-mentioned conductive terminal includes a fixed seat, a clamping part and a bracket. The conductive clamping part is fixed to the first side of the above-mentioned fixed seat. The clamping part includes a pair of elastic pieces. The clamping part is used for clamping the above-mentioned plug-in component; the above-mentioned bracket includes a floating structure and a connecting part. The floating structure is connected between the above-mentioned fixed seat and the above-mentioned connecting part. The floating structure is bent along a first direction and a second direction. The bent part of the floating structure can absorb the installation position error between the conductive terminal and the plug-in component, so that the clamping part connected to the fixed seat floats as a whole within a large range, so as to be plugged with the plug-in component, reducing the difficulty of mating and plugging. At the same time, the floating structure can also absorb the stress during vibration and avoid damage to the conductive terminal.

[0010] In an alternative technical solution of the present utility model, the above-mentioned bracket is fixed to the second side of the above-mentioned fixed seat. It can increase the floating ability in the non-clamping direction (that is, the arrangement direction of the two elastic pieces in the pair of elastic pieces).

[0011] In an alternative technical solution of the present utility model, the above-mentioned floating structure includes a first bent section and a second bent section. The first orientation is the orientation along the Z-axis from the starting point to the ending point of the above-mentioned first bent section, and the second orientation is the orientation along the Z-axis from the starting point to the ending point of the above-mentioned second bent section. The directions of the above-mentioned first orientation and the above-mentioned second orientation are opposite.

[0012] In an alternative technical solution of the present utility model, the above-mentioned first bent section extends obliquely upward from the above-mentioned fixed seat, and the above-mentioned second bent section extends obliquely downward from the ending point of the above-mentioned first bent section;

[0013] The above-mentioned floating structure further includes a third bent section, and the above-mentioned third bent section extends obliquely downward from the ending point of the above-mentioned second bent section.

[0014] In an alternative technical solution of the present utility model, the difference between the length of the above-mentioned second bent section and the length of the above-mentioned third bent section is less than or equal to 40% of the length of the above-mentioned third bent section.

[0015] In an alternative technical solution of the present utility model, the intersection point of the above-mentioned fixing base and the above-mentioned bracket is the starting point of the above-mentioned floating structure, the intersection point of the above-mentioned floating structure and the above-mentioned connecting member is the ending point of the above-mentioned floating structure, and the distance between the above-mentioned starting point and the above-mentioned ending point along the extension direction of the above-mentioned first side is less than or equal to half of the height of the above-mentioned conductive terminal.

[0016] In an alternative technical solution of the present utility model, a hollow structure is provided on the above-mentioned floating structure.

[0017] In an alternative technical solution of the present utility model, the above-mentioned fixing base is a rectangular structure, the above-mentioned paired elastic pieces are respectively connected to the two above-mentioned first sides of the above-mentioned fixing base, and the above-mentioned floating structure is connected to the two above-mentioned second sides of the above-mentioned fixing base;

[0018] A through hole is provided in the middle of the above-mentioned fixing base, and the above-mentioned through hole is used for the above-mentioned plug to pass through.

[0019] In an alternative technical solution of the present utility model, the above-mentioned connecting member includes a first connecting member and a second connecting member, and the length of the above-mentioned second connecting member along the Z-axis is greater than the length of the above-mentioned first connecting member along the Z-axis.

[0020] In an alternative technical solution of the present utility model, the above-mentioned connecting member includes two above-mentioned first connecting members and two above-mentioned second connecting members, and the two above-mentioned second connecting members are arranged diagonally.

[0021] In an alternative technical solution of the present utility model, the above-mentioned conductive terminal includes a plurality of paired elastic pieces.

[0022] In an alternative technical solution of the present utility model, the above-mentioned plug includes a fixing portion, a floating portion and a plugging portion, the above-mentioned floating portion includes a bending structure, the above-mentioned plugging portion is used for plugging with the above-mentioned conductive terminal, and the above-mentioned floating portion is located between the above-mentioned fixing portion and the above-mentioned plugging portion.

[0023] The present utility model further provides a battery pack, including the above-mentioned power distributor.

[0024] The present utility model further provides an electrical device, including the above-mentioned battery pack.

[0025] Proposal 1. A power distributor, characterized in that it includes:

[0026] A battery management unit;

[0027] A relay;

[0028] The above-mentioned battery management unit and the above-mentioned relay are stacked in the Z direction, one of the above-mentioned battery management unit and the above-mentioned relay is connected to the conductive terminal, the other is connected to the plug, and the conductive terminal and the plug are plugged into each other.

[0029] Proposal 2. The distributor as described in Proposal 1, wherein the conductive terminal and the plug are welded.

[0030] Proposal 3. The distributor as described in Proposal 1, wherein the distributor further comprises a housing, and the housing comprises an upper housing and a partition board;

[0031] The partition board is arranged between the battery management unit and the relay;

[0032] The battery management unit is arranged in the space surrounded by the upper housing and the partition board.

[0033] Proposal 4. The distributor as described in Proposal 3, wherein the relay is fixed on the partition board.

[0034] Proposal 5. The distributor as described in Proposal 4, wherein the housing further comprises a lower housing, and the distributor is arranged in the space surrounded by the lower housing and the partition board.

[0035] Proposal 6. The distributor as described in Proposal 4, wherein a mounting member is arranged at the middle position of the housing of the relay along the Z axis.

[0036] Proposal 7. The distributor as described in Proposal 1, wherein the conductive terminal comprises:

[0037] A fixed seat;

[0038] A conductive clamping member fixed to the first side of the fixed seat, the clamping member comprises a pair of elastic pieces, and the clamping member is used for clamping the plug;

[0039] A bracket fixed to the fixed seat;

[0040] The bracket comprises a floating structure and a connecting member, the floating structure is connected between the fixed seat and the connecting member, and the floating structure is bent along a first direction and a second direction.

[0041] Proposal 8. The distributor as described in Proposal 7, wherein the bracket is fixed to the second side of the fixed seat.

[0042] Proposal 9. The distributor as described in Proposal 8, wherein the floating structure comprises a first bending section and a second bending section, the first direction is the direction along the Z axis from the starting point to the ending point of the first bending section, the second direction is the direction along the Z axis from the starting point to the ending point of the second bending section, and the directions of the first direction and the second direction are opposite.

[0043] Proposal 10. The distributor as described in Proposal 9, wherein the first bending section extends obliquely upward from the fixed seat, and the second bending section extends obliquely downward from the ending point of the first bending section;

[0044] The floating structure further includes a third bent section, and the third bent section extends obliquely downward from the end point of the second bent section.

[0045] Proposal 11. The distributor according to Proposal 10, wherein the difference between the length of the second bent section and the length of the third bent section is less than or equal to 40% of the length of the third bent section.

[0046] Proposal 12. The distributor according to Proposal 8, wherein the intersection point of the fixed seat and the bracket is the starting point of the floating structure, the intersection point of the floating structure and the connecting member is the end point of the floating structure, and the distance between the starting point and the end point along the extending direction of the first side is less than or equal to half of the height of the conductive terminal.

[0047] Proposal 13. The distributor according to Proposal 8, wherein a hollow structure is provided on the floating structure.

[0048] Proposal 14. The distributor according to Proposal 8, wherein the fixed seat is a rectangular structure, the paired elastic pieces are respectively connected to the two first sides of the fixed seat, and the floating structure is connected to the two second sides of the fixed seat;

[0049] A through hole is provided in the middle of the fixed seat, and the through hole is used for the plug to pass through.

[0050] Proposal 15. The distributor according to Proposal 8, wherein the connecting member includes a first connecting member and a second connecting member, and the length of the second connecting member along the Z axis is greater than the length of the first connecting member along the Z axis.

[0051] Proposal 16. The distributor according to Proposal 15, wherein the connecting member includes two first connecting members and two second connecting members, and the two second connecting members are arranged diagonally.

[0052] Proposal 17. The distributor according to Proposal 8, wherein the conductive terminal includes a plurality of paired elastic pieces.

[0053] Proposal 18. The distributor according to Proposal 1, wherein the plug includes a fixed part, a floating part and a plugging part, the floating part includes a bent structure, the plugging part is used for plugging with the conductive terminal, and the floating part is located between the fixed part and the plugging part.

[0054] Proposal 19. The distributor according to Proposal 1, wherein the distributor further includes an electrical quick-change connector, and the electrical quick-change connector is electrically connected to the relay.

[0055] Proposal 20. A battery pack, characterized in that it includes a power distributor as described in any one of Proposals 1 to 19.

[0056] Proposal 21. An electrical device, characterized in that it includes the battery pack as described in Proposal 20. Description of the Drawings

[0057] Figure 1 Is a perspective view of the power distributor;

[0058] Figure 2 Is Figure 1 The bottom view of;

[0059] Figure 3 Is an exploded view of the power distributor;

[0060] Figure 4 Is a schematic diagram showing the connection between the relay and the partition;

[0061] Figure 5 Is a perspective view of an embodiment of the conductive terminal;

[0062] Figure 6 Is a schematic diagram of two bending methods of the floating structure;

[0063] Figure 7 Is Figure 5 The front view of;

[0064] Figure 8 Is another embodiment of the floating structure;

[0065] Figure 9 Is a schematic diagram of the conductive terminal installed on the BMU;

[0066] Figure 10 Is a schematic diagram of an insertion embodiment of the clamping member and the plug-in member;

[0067] Figure 11 Is a schematic diagram of another insertion embodiment of the clamping member and the plug-in member.

[0068] Figure 12 Is a perspective view of another embodiment of the conductive terminal of the present invention.

[0069] Reference Numerals

[0070] Power distributor 100;

[0071] Battery management unit 110;

[0072] Relay 120, mounting member 121;

[0073] Conductive terminal 130;

[0074] Fixed seat 131;

[0075] The first side 1311, the second side 1312, and the through hole 1313;

[0076] The clamping member / elastic piece 132;

[0077] The first elastic section 1321, the second elastic section 1322, and the protrusion 1323;

[0078] The bracket 133;

[0079] The floating structure 1331;

[0080] The first bending section 13311, the second bending section 13312, and the third bending section 13313;

[0081] The connecting member 1332;

[0082] The first connecting member 13321 and the second connecting member 13322;

[0083] The hollow structure 1333;

[0084] The auxiliary member 134;

[0085] The plug-in member 140;

[0086] The fixing portion 141, the floating portion 142, and the insertion portion 143;

[0087] The upper housing 150;

[0088] The partition 160;

[0089] The partial cover 170;

[0090] The middle frame 180. Specific embodiments

[0091] The optional embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0092] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "distance", "width", "thickness", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0093] In the description of the present utility model, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0094] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly specified and defined, the terms "arranged" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0095] In the existing distributor, the battery management unit and the relay are placed flat on the XY plane and are electrically connected through a large number of long wire harnesses. To solve the problems of space waste and complex wire harness connection in the distributor, as Figures 1 - 4 shown, the present utility model provides a distributor 100, which includes a battery management unit 110 and a relay 120. The battery management unit 110 and the relay 120 are stacked along the Z direction. Compared with the flat placement on the XY plane, the stacking along the Z direction saves more space and makes the overall structure of the distributor more compact. One of the battery management unit 110 and the relay 120 is connected to a conductive terminal 130, and the other is connected to a plug 140, and the conductive terminal 130 and the plug 140 are inserted. That is, the stacking of the battery management unit 110 and the relay 120 along the Z direction can make the distance between them smaller, allowing electrical connection to be achieved through insertion. By replacing the wire harness connection with the insertion of the conductive terminal 130 and the plug 140, the electrical connection method can be simplified while saving space inside the distributor.

[0096] In an alternative embodiment of the present utility model, the conductive terminal 130 and the plug 140 are welded. That is, after the conductive terminal 130 and the plug 140 are inserted, welding is performed to further improve the stability of their electrical connection.

[0097] In an alternative embodiment of the present utility model, as Figure 2 and Figure 3As shown, the distributor 100 further includes a housing, which includes an upper housing 150, a partition 160, and a partial cover 170; the partition 160 is disposed between the battery management unit 110 and the relay 120; the battery management unit 110 is disposed in the space enclosed by the upper housing 150 and the partition 160; the relay 120 is disposed below the partition 160; the distributor 100 further includes a fuse and a copper busbar, and the partial cover 170 is used to cover the fuse and the copper busbar to play a role in preventing finger contact. If the relay 120 and the battery management unit 110 are simply placed in the housing of the distributor 100, the battery management unit 110 needs to be disassembled first to remove the relay 120, and the process is very troublesome and easily damages related components. The relay 120 and the battery management unit 110 are disposed on the upper and lower sides of the partition 160, so that the upper housing 150 can be disassembled separately to repair the battery management unit 110 or the relay 120 can be disassembled and repaired separately. In this embodiment, only the partial cover 170 is disposed below the distributor 100 to cover the fuse and the copper busbar. It can be understood that the distributor can also be provided with a complete lower housing for covering all components located below the partition, such as the relay, the fuse, and the copper busbar.

[0098] Optionally, as Figure 3 shown, the housing of the distributor 100 further includes an intermediate frame 180. The partition 160 and the intermediate frame 180 can be integrally formed. The upper housing 150 is connected to the intermediate frame 180, and the lower housing 170 is connected to the intermediate frame 180 or the partition 160. Specifically, the position of the partition can be determined according to the space required by the components above and below the partition. For example, in this embodiment, the space required by the relay 120 is larger than the space required by the battery management unit 110, and the partition 160 is disposed at a position relatively above in the height direction of the intermediate frame 180.

[0099] Optionally, as Figure 3 and Figure 4 shown, an installation member 121 is disposed at the middle position of the housing of the relay 120 along the Z axis. The installation member 121 includes a through hole, so that the relay 120 can be mounted on the partition 160 frontally or reversely.

[0100] In an alternative embodiment of the present invention, as Figure 1 and Figure 2 shown, the distributor 100 further includes an electrical quick-change connector 180. The electrical quick-change connector 180 is electrically connected to the relay 120 through a copper busbar 190.

[0101] In an alternative embodiment of the present invention, as Figures 5 - 12As shown in the figure, the conductive terminal 130 includes a fixing base 131, a conductive clamping member 132, and a bracket 133. The clamping member 132 is fixed to the first side 1311 of the fixing base 131, and the bracket 133 is fixed to the second side 1312 of the fixing base 131. The clamping member 132 includes a pair of elastic pieces for clamping the plug-in member 140. The bracket 133 includes a floating structure 1331 and a connecting member 1332. The floating structure 1331 is connected between the fixing base 131 and the connecting member 1332, and the floating structure 1331 is bent along the first direction (Z-axis or X-axis). The clamping member 132 is fixed to the first side of the fixing base 131, that is, the clamping member 132 clamps the plug-in member 140 along the Y direction. The bracket 133 is fixed to the second side 1312 of the fixing base 131. The floating structure 1331 can absorb the installation position error between the conductive terminal 130 and the plug-in member 140, so that the clamping member 133 connected to the fixing base 131 can float greatly as a whole in the X direction or Z direction, so as to be inserted into the plug-in member 140. As Figure 6 As shown in the figure, the connection between the fixing base 131 and the floating structure 1331 can have two forms, a and b. Figure a shows that the floating structure 1331 is only bent along the Z-axis, so the whole clamping member 132 can float along the X-axis. Figure b shows that the floating structure 1331 is only bent along the X-axis, so the whole clamping member 132 can float along the Z-axis.

[0102] In an alternative embodiment of the present invention, as Figure 7 shown in the figure, the floating structure 1331 is also bent along the second direction (Z-axis or X-axis). That is, the floating structure 1331 can be bent along the first direction and the second direction at the same time, further improving the flexibility of the clamping member 132. The whole clamping member 132 can float along the Z-axis and X-axis to be inserted into the plug-in member 140.

[0103] In an alternative embodiment of the present invention, as Figure 7 shown in the figure, the floating structure 1331 includes a first bending section 13311 and a second bending section 13312. The orientation of the Z-axis from the starting point to the ending point of the first bending section 13311 is the first orientation, and the orientation of the Z-axis from the starting point to the ending point of the second bending section 13312 is the second orientation. The first orientation and the second orientation are opposite. Therefore, while ensuring that the whole clamping member 132 can float along the Z-axis and X-axis to be inserted into the plug-in member 140, it also avoids occupying a large Z-direction space. Specifically, as Figure 7 shown in the figure, the first bending section 13311 is arranged between the fixing base 131 and the second bending section 13312. The first bending section 13311 first extends obliquely upward from its connection with the fixing base 131, and the second bending section 13312 extends obliquely downward from its starting point. Of course, the floating structure can also only extend obliquely downward from the fixing base 131, but Figure 3 the structure can save Z-direction space compared with the structure that only extends obliquely downward from the fixing base 131 directly. Relative to Figure 2Structures directly extending along the Z - direction or the X - direction in the middle Figure 3 The bent section in it extends obliquely upward or obliquely downward, and can simultaneously have the ability to float along the Z - axis and the X - axis.

[0104] Optionally, as Figure 7 shown, the floating structure 1331 further includes a third bent section 13313. The third bent section 13313 extends obliquely downward from the end point of the second bent section 13312. The setting of the third bent section 13313 makes the floating range of the floating structure 1331 larger in the Z - axis and X - axis directions, and makes the floating space of the position of the clamping member 132 larger. It can be understood that the second bent section 13312 can also be arranged between the fixed seat 131 and the first bent section 13311. In another embodiment of the present invention, the difference between the length of the second bent section 13312 and the length of the third bent section 13313 is less than or equal to 40% of the length of the third bent section 13313. Setting the lengths of the second bent section 13312 and the third bent section 13313 to be approximately equal makes the floating amplitude of the bracket 133 larger and more flexible in the Z - direction and X - direction. In this embodiment, the floating structure 1331 includes three bent sections. Of course, it can also include four or five, and the quantity is not limited.

[0105] Such as Figure 8 shown, in another embodiment of the present invention, the first bent section can also extend obliquely downward from the fixed seat, and the second bent section extends obliquely upward from the intersection point with the first bent section. In this way, it can also meet the floating of the clamping member 132 in the Z - axis and X - axis directions while saving space in the Z - direction. It can be understood that, under the embodiments disclosed in the present invention, other deformations are within the protection scope of the present invention.

[0106] Such as Figure 12 shown, the floating structure 1331 of the conductive terminal 130 can only include two bent sections. Specifically, both the first bent section and the second bent section extend obliquely downward, where the first bent section extends along the X - axis in the direction away from the fixed seat, and the second bent section extends along the X - axis in the direction close to the fixed seat. And in this embodiment, the conductive terminal only includes two connecting members 13312.

[0107] Such as Figure 7 shown, in an alternative embodiment of the present invention, the intersection point of the fixed seat 131 and the bracket 133 is the starting point A of the floating structure 1331, and the intersection point of the floating structure 1331 and the connecting member 1332 is the end point B of the floating structure 1331. The distance between the starting point A and the end point B along the extension direction of the first side 1311 (i.e., the X - axis direction) is less than or equal to half of the height of the conductive terminal 130. The smaller the distance between the starting point A and the end point B along the X - axis, the better the floating ability. In another alternative embodiment of the present invention, as Figure 3As shown, the Z-direction distance between the end point B of the fixed seat 131 and the floating structure 1331 is less than or equal to the height of the clamping member 132.

[0108] In an alternative embodiment of the present invention, as Figure 5 shown, a hollow structure 1333 is provided on the floating structure 1331. The provision of the hollow structure 1333 allows the floating structure 1331 to also have a certain floating space on the Y-axis. Coupled with the fact that the floating structure 1331 can float along the Z-axis and the X-axis, the floating structure 1331 can float in three directions in space, further improving the flexibility of the clamping member 132 and making it easier to insert the plug-in 140 into the conductive terminal 130.

[0109] In an alternative embodiment of the present invention, as Figure 5 and Figure 7 shown, the fixed seat 131 is a rectangular structure, and paired elastic pieces are respectively connected to two first sides 1311 of the fixed seat 131, and the floating structure 1331 is connected to two second sides 1312 of the fixed seat 131; a through hole 1313 is provided in the middle of the fixed seat 131, and the through hole 1313 is used for the plug-in 140 to pass through and be inserted into the clamping member 132.

[0110] In an alternative embodiment of the present invention, as Figure 5 and Figure 9 shown, the connecting member 1332 includes a first connecting member 13321 and a second connecting member 13322, and the length of the second connecting member 13322 along the Z-axis is greater than the length of the first connecting member 13321 along the Z-axis. When installing the conductive terminal 130 onto a related component, the first connecting member 13321 contacts the installation position first, which can play a positioning role. In another alternative embodiment of the present invention, the width of the second connecting member 13322 can be less than the width of the first connecting member 13321. Of course, it is also possible to set the width of the second connecting member 13322 to be equal to the width of the first connecting member 13321. In another alternative embodiment of the present invention, the connecting member 1332 includes two first connecting members 13321 and two second connecting members 13322, and the two second connecting members 13322 are arranged diagonally, which is more convenient for positioning. It can be understood that the above are all alternative embodiments of the present invention that are convenient for positioning and are all within the protection scope of the present invention.

[0111] In an alternative embodiment of the present invention, as Figure 5 、 Figure 7 and Figure 9As shown, the conductive terminal 130 includes an auxiliary part 134 for connecting to tooling equipment. When installing the conductive terminal 130 onto relevant components (such as the Battery Management Unit BMU), the conductive terminal 130 needs to be grasped and moved. For example, it can be adsorbed by a suction cup on the auxiliary part to drive the movement of the conductive terminal 130 and insert it into the Battery Management Unit 110 (BMU), and then the conductive terminal 130 and the Battery Management Unit 110 are welded by welding equipment.

[0112] In an alternative embodiment of the present invention, as Figure 5 shown, the conductive terminal 130 includes a plurality of pairs of elastic pieces (i.e., clamping pieces). When the plug-in 140 deflects in the XY plane, if a pair of elastic pieces with a larger width along the X-axis is plugged in, the contact area between the plug-in 140 and this pair of elastic pieces is very small. Figure 5 By arranging multiple pairs of elastic pieces with smaller widths along the X-axis, the contact area between all the elastic pieces and the plug-in 140 can be increased. In another alternative embodiment of the present invention, as Figure 5 and Figure 7 shown, the elastic piece includes a first elastic piece segment 1321 and a second elastic piece segment 1322. The first elastic piece segment 1321 connects the fixed seat 131 and the second elastic piece segment 1322. The width of the first elastic piece segment 1321 is smaller than that of the second elastic piece segment 1322, so that the elastic piece has better flexibility, especially the elastic piece is more likely to rotate along the Y-axis. As Figure 10 shown, in another alternative embodiment of the present invention, paired protrusions 1323 are arranged inside the paired elastic pieces 1323. The protrusions 1323 are used to contact the plug-in 140, which can increase the contact area.

[0113] Figure 7 shows the plugged state of the plug-in 140 connected to the relay 120 and the conductive terminal 130 connected to the Battery Management Unit 110. The plugging structure can also be used for the electrically connected parts in the distributor 100, including but not limited to the plug connected to the relay 120 and the plugging of the conductive terminal connected to the BMU. In another embodiment of the present invention, as Figure 11As shown, the plug-in 140 includes a fixing part 141, a floating part 142 and a plugging part 143. The floating part 142 includes a bending structure. The plugging part 143 is used for plugging with the conductive terminal 130. The floating part 142 is located between the fixing part 141 and the plugging part 143. A hollow structure is also provided on the floating part 142. Similarly, the floating part 142 also includes a plurality of bending segments, and the bending segments are transitioned with small rounded corners, which can satisfy the floating of the plug-in 140 itself in the three directions of X, Y and Z, and further improves the flexibility of the plugging between the plug-in 140 and the conductive terminal 130. If there are multiple plugging and electrical connection structures in the distributor 100, multiple inserts need to be inserted into multiple conductive terminals respectively and be in electrical contact with the multiple conductive terminals respectively. The installation position error between each conductive terminal and each plug-in should be very small or zero, otherwise multiple pairs of plug-ins without a floating structure cannot be inserted into multiple conductive terminals at the same time. In the distributor 100 provided by the present invention, because both the conductive terminal 130 and the plug-in 140 include a floating structure, even if there is a certain installation position error, each plug-in 140 can be inserted into the corresponding conductive terminal 130, greatly reducing the matching difficulty and the cost.

[0114] The present invention also provides a battery pack, which includes the above-mentioned distributor 100.

[0115] The present utility model also provides an electrical device. The electrical device of the present utility model includes the battery pack of the optional embodiment. The electrical device can be but is not limited to mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric vehicles, ships, spacecrafts, etc. Among them, the electric toys can include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys and electric aircraft toys, etc. The spacecrafts can include airplanes, rockets, space shuttles and spaceships, etc.

[0116] So far, the technical solution of the present utility model has been described in combination with the optional embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or replacements to the relevant technical features, and the technical solutions after these changes or replacements will all fall within the protection scope of the present utility model.

Claims

1. A distributor, characterized in that, Comprising: A battery management unit; A relay; The battery management unit and the relay are stacked along the Z direction. One of the battery management unit and the relay is connected to a conductive terminal, and the other is connected to a plug, and the conductive terminal and the plug are plugged together.

2. The distributor according to claim 1, characterized in that, The conductive terminal and the plug are welded.

3. The distributor according to claim 1, characterized in that, The distributor further includes a housing, and the housing includes an upper housing and a partition; The partition is disposed between the battery management unit and the relay; The battery management unit is disposed in the space enclosed by the upper housing and the partition; 4. The distributor according to claim 3, characterized in that, The relay is fixed on the partition; 5. The distributor according to claim 4, characterized in that, The housing further includes a lower housing, and the distributor is disposed in the space enclosed by the lower housing and the partition; 6. The distributor according to claim 4, characterized in that, An installation member is provided at the middle position of the housing of the relay along the Z axis; 7. The distributor according to claim 1, characterized in that, The conductive terminal includes: a fixed seat; A conductive clamping member fixed to the first side of the fixed seat. The clamping member includes a pair of elastic pieces, and the clamping member is used for clamping the plug; A bracket fixed to the fixed seat; The bracket includes a floating structure and a connecting member. The floating structure is connected between the fixed seat and the connecting member, and the floating structure is bent along a first direction and a second direction.

8. The distributor according to claim 7, characterized in that, The bracket is fixed to the second side of the fixed seat; 9. The distributor according to claim 8, characterized in that, The floating structure includes a first bending section and a second bending section. The first orientation is the orientation along the Z axis from the starting point to the ending point of the first bending section, and the second orientation is the orientation along the Z axis from the starting point to the ending point of the second bending section. The directions of the first orientation and the second orientation are opposite; 10. The distributor according to claim 9, characterized in that, The first bending section extends obliquely upward from the fixed seat, and the second bending section extends obliquely downward from the ending point of the first bending section; The floating structure further includes a third bending section, and the third bending section extends obliquely downward from the ending point of the second bending section; 11. The distributor according to claim 10, characterized in that, The difference between the length of the second bending section and the length of the third bending section is less than or equal to 40% of the length of the third bending section; 12. The distributor according to claim 8, characterized in that, The intersection point of the fixed seat and the bracket is the starting point of the floating structure, and the intersection point of the floating structure and the connecting member is the ending point of the floating structure. The distance between the starting point and the ending point along the extending direction of the first side is less than or equal to half of the height of the conductive terminal; 13. The distributor according to claim 8, wherein, A hollow structure is provided on the floating structure; 14. The distributor according to claim 8, characterized in that, The fixed seat is a rectangular structure, and the pair of elastic pieces are respectively connected to the two first sides of the fixed seat, and the floating structure is connected to the two second sides of the fixed seat; A through hole is provided in the middle of the fixed seat, and the through hole is used for the plug to pass through; 15. The distributor according to claim 8, characterized in that, The connecting member includes a first connecting member and a second connecting member, and the length of the second connecting member along the Z axis is greater than the length of the first connecting member along the Z axis; 16. The distributor according to claim 15, characterized in that, The connecting member includes two first connecting members and two second connecting members, and the two second connecting members are arranged diagonally; 17. The distributor according to claim 8, characterized in that, The conductive terminal includes a plurality of pairs of elastic pieces; 18. The distributor according to claim 1, characterized in that, The plug includes a fixing portion, a floating portion and a plugging portion. The floating portion includes a bending structure. The plugging portion is used for plugging with the conductive terminal, and the floating portion is located between the fixing portion and the plugging portion.

19. The distributor according to claim 1, characterized in that, The distributor further includes an electrical quick-change connector, and the electrical quick-change connector is electrically connected to the relay.

20. A battery pack, characterized in that, Comprising a distributor according to any one of claims 1 to 19.

21. An electrical device, characterized in that, Comprising a battery pack according to claim 20.

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